5n+6+(−7n) what's is the answer

The simplified answer is -2n+6

Step-by-step explanation:

All you have to do is simplify terms. -7n and 5n are terms you can combine, giving you -2n and +6 cant be simplified

50.24 units squared

Step-by-step explanation:

The formula for finding area using radius is A = πr^2.

The radius equals diameter/2.

So, r = 8/2 = 4.

Plugging that value in, the equation becomes A = π(4)^2.

Simplifying π to 3.14, the equation becomes A = 3.14(4)^2

Solving 4^2, the equation becomes A = 3.14*16

Solving 3.14*16, the equation becomes A = 50.24.

Therefore, the final answer is 50.24 units squared.